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The Ministry of the Environment (環境省,Kankyō-shō?) is a Cabinet-level ministry of the government of Japan responsible for global environmental conservation, pollution control, and nature conservation. The ministry was formed in 2001 from the sub-cabinet level Environmental Agency established in 1971. The minister is a member of the Cabinet of Japan and is chosen by the Prime Minister, usually from the Diet.
The Ministry of the Environment began advocating the Cool Biz campaign in summer 2005 as a means to help reduce electric consumption by limiting use of air conditioning and allowing the wearing of less formal officewear. This idea was proposed by then-MOE minister Yuriko Koike under Prime Minister Koizumi.
Following the Tōhoku earthquake and tsunami in March 2011, the shut down of many nuclear power plants for safety reasons lead to energy shortages. To conserve energy, the government recommended setting air conditioners at 28 degrees Celsius, switching off computers not in use, and called for shifting work hours to the morning and taking more summer vacation than usual. The government then launched a Super Cool Biz campaign to encourage workers to wear outfits appropriate for the office yet cool enough to endure the summer heat. Polo shirts and trainers are allowed, while jeans and sandals are also acceptable under certain circumstances. June 1 marked the start of the Environment Ministry's campaign, with full-page newspaper ads and photos of ministry workers smiling rather self-consciously at their desks wearing polo shirts and colorful Okinawa kariyushi shirts. The campaign was repeated in 2012 and 2013.